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SubjectRe: [PATCH 2/2] page_alloc: Remove argument to find_zone_movable_pfns_for_nodes
On Tue, 13 Mar 2012, Kautuk Consul wrote:

> The find_zone_movable_pfns_for_nodes() function does not utiilize
> the argument to it.
>

It could, though, if we made it to do so.

> Removing this argument from the function prototype as well as its
> caller, i.e. free_area_init_nodes().
>

Not sure if we'd ever want it or not for other purposes, but
find_zone_movable_pfns_for_nodes() could easily be made to use the passed
in array rather than zone_movable_pfn in file scope directly. That seems
to be why it took an argument in the first place.

> Signed-off-by: Kautuk Consul <consul.kautuk@gmail.com>
> ---
> mm/page_alloc.c | 4 ++--
> 1 files changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/mm/page_alloc.c b/mm/page_alloc.c
> index 3171f4c..a368b9b 100644
> --- a/mm/page_alloc.c
> +++ b/mm/page_alloc.c
> @@ -4509,7 +4509,7 @@ static unsigned long __init early_calculate_totalpages(void)
> * memory. When they don't, some nodes will have more kernelcore than
> * others
> */
> -static void __init find_zone_movable_pfns_for_nodes(unsigned long *movable_pfn)
> +static void __init find_zone_movable_pfns_for_nodes(void)
> {
> int i, nid;
> unsigned long usable_startpfn;
> @@ -4701,7 +4701,7 @@ void __init free_area_init_nodes(unsigned long *max_zone_pfn)
>
> /* Find the PFNs that ZONE_MOVABLE begins at in each node */
> memset(zone_movable_pfn, 0, sizeof(zone_movable_pfn));
> - find_zone_movable_pfns_for_nodes(zone_movable_pfn);
> + find_zone_movable_pfns_for_nodes();
>
> /* Print out the zone ranges */
> printk("Zone PFN ranges:\n");


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